MSM514221B datasheet, PDF - EEWORLD Datasheet

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MSM514221B: Description262,263-Word x 4-Bit Field Memory; File Size146KB，15 Pages; ManufacturerOKI; Websitehttp://www.oki.com

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MSM514221B Overview

262,263-Word x 4-Bit Field Memory

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E2L0029-17-Y1

¡ Semiconductor

MSM514221B

¡ Semiconductor

262,263-Word

4-Bit Field Memory

This version: Jan. 1998

MSM514221B

Previous version: Dec. 1996

DESCRIRTION

The OKI MSM514221B is a high performance 1-Mbit, 256K

4-bit, Field Memory. It is designed

for high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital

movies and Multi-media systems. It is a FRAM for wide or low end use as general commodity

TVs and VTRs, exclusively. The MSM514221B is not designed for the other use or high end use

in medical systems, professional graphics systems which require long term picture, and data

storage systems and others. The 1-Mbit capacity fits one field of a conventional NTSC TV screen.

Each of the 4-bit planes has separate serial write and read ports. These employ independent

control clocks to support asynchronous read and write operations. Different clock rates are also

supported that allow alternate data rates between write and read data streams.

The MSM514221B provides high speed FIFO, First-In First-Out, operation without external

refreshing: it refreshes its DRAM storage cells automatically, so that it appears fully static to the

users.

Moreover, fully static type memory cells and decoders for serial access enable refresh free serial

access operation, so that the serial read and/or write control clock can be halted high or low for

any duration as long as the power is on. Internal conflicts of memory access and refreshing

operations are prevented by special arbitration logic.

The MSM514221B's function is simple, and similar to a digital delay device whose delay-bit-

length is easily set by reset timing. The delay length, number of read delay clocks between write

and read, is determined by externally controlled write and read reset timings.

Additional SRAM serial registers, or line buffers for the initial access of 256

4-bit enable high

speed first-bit-access with no clock delay just after the write or read reset timings.

The MSM514221B is similar in operation and functionality to OKI 2-Mbit Field Memory

MSM518221.

1/15

MSM514221B Related Products

	MSM514221B	MSM514221B-30JS	MSM514221B-30RS	MSM514221B-30ZS	MSM514221B-40JS	MSM514221B-40RS	MSM514221B-40ZS	MSM514221B-60JS	MSM514221B-60RS	MSM514221B-60ZS
Description	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory
Maker	-	OKI	-	OKI	OKI	OKI	OKI	OKI	OKI	OKI
Parts packaging code	-	SOJ	DIP	ZIP	SOJ	DIP	ZIP	SOJ	DIP	ZIP
package instruction	-	SOJ,	DIP,	DIP,	SOJ,	DIP,	DIP,	SOJ,	DIP,	DIP,
Contacts	-	20	16	20	20	16	20	20	16	20
Reach Compliance Code	-	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow
Other features	-	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH
JESD-30 code	-	R-PDSO-J20	R-PDIP-T16	R-PZIP-T20	R-PDSO-J20	R-PDIP-T16	R-PZIP-T20	R-PDSO-J20	R-PDIP-T16	R-PZIP-T20
length	-	17.15 mm	19.05 mm	25.5 mm	17.15 mm	19.05 mm	25.5 mm	17.15 mm	19.05 mm	25.5 mm
memory density	-	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi
Memory IC Type	-	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT
memory width	-	4	4	4	4	4	4	4	4	4
Number of functions	-	1	1	1	1	1	1	1	1	1
Number of terminals	-	20	16	20	20	16	20	20	16	20
word count	-	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words
character code	-	256000	256000	256000	256000	256000	256000	256000	256000	256000
Operating mode	-	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	-	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C
organize	-	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4
Output characteristics	-	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	SOJ	DIP	DIP	SOJ	DIP	DIP	SOJ	DIP	DIP
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE	IN-LINE	IN-LINE	SMALL OUTLINE	IN-LINE	IN-LINE	SMALL OUTLINE	IN-LINE	IN-LINE
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	3.55 mm	5.08 mm	10.16 mm	3.55 mm	5.08 mm	10.16 mm	3.55 mm	5.08 mm	10.16 mm
Maximum supply voltage (Vsup)	-	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	-	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage (Vsup)	-	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	-	YES	NO	NO	YES	NO	NO	YES	NO	NO
technology	-	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	-	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	-	J BEND	THROUGH-HOLE	THROUGH-HOLE	J BEND	THROUGH-HOLE	THROUGH-HOLE	J BEND	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	-	1.27 mm	2.54 mm	1.27 mm	1.27 mm	2.54 mm	1.27 mm	1.27 mm	2.54 mm	1.27 mm
Terminal location	-	DUAL	DUAL	ZIG-ZAG	DUAL	DUAL	ZIG-ZAG	DUAL	DUAL	ZIG-ZAG
width	-	7.62 mm	7.62 mm	2.8 mm	7.62 mm	7.62 mm	2.8 mm	7.62 mm	7.62 mm	2.8 mm

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